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Freezing Fog Advisory

Issued at Wed 4:15 AM Jan. 14
Issued by: National Weather Service
Recommended Action
State air quality agencies highly recommend that no outdoor burning occur and that residential wood burning devices be limited as much as possible. According to state air quality agencies, prolonged periods of stagnant air can hold pollutants close to the ground where people live and breathe. Check with your local burn agency for any current restrictions in your area. People with respiratory illness should follow their physician's advice for dealing with high levels of air pollution during periods of stagnant air, especially if an Air Quality Alert is in effect for your area. To see if an Air Quality Alert is in effect for your area, go to www.weather.gov/pqr and left-click your location on the homepage map display. Alternatively, you could also type your location into the search bar found on the top-left hand side of the homepage. From there, you will see an Air Quality Alert listed at the top if one is in effect for your location; you can click the alert to read more details if applicable. If driving, slow down and leave plenty of distance ahead of you. Pedestrians and cyclists should wear bright or reflective clothing to increase the chances of being seen by others in poor visibility conditions.
Full details  

Air Stagnation Advisory

Issued at Wed 4:15 AM Jan. 14
Issued by: National Weather Service
Description

What: For the Freezing Fog Advisory, visibility one quarter mile or less in dense freezing fog with surface temperatures between 28 and 32 degrees. For the Air Stagnation Advisory, light winds and limited air movement will lead to a period of stagnant air conditions.
Where: Central Willamette Valley, Benton County Lowlands, and Linn County Lowlands.
When: For the Freezing Fog Advisory, until noon PST today. For the Air Stagnation Advisory, until 4 AM PST Friday.
Impacts: Deteriorating air quality may cause issues for people with respiratory problems. Low visibility could make driving conditions hazardous.
Additional Details: Fog droplets may freeze onto exposed surfaces, resulting in a thin layer of rime ice. This is most likely to occur where fog is most dense and surface temperatures are below 30 degrees.

Recommended Action

State air quality agencies highly recommend that no outdoor burning occur and that residential wood burning devices be limited as much as possible. According to state air quality agencies, prolonged periods of stagnant air can hold pollutants close to the ground where people live and breathe. Check with your local burn agency for any current restrictions in your area. People with respiratory illness should follow their physician's advice for dealing with high levels of air pollution during periods of stagnant air, especially if an Air Quality Alert is in effect for your area. To see if an Air Quality Alert is in effect for your area, go to www.weather.gov/pqr and left-click your location on the homepage map display. Alternatively, you could also type your location into the search bar found on the top-left hand side of the homepage. From there, you will see an Air Quality Alert listed at the top if one is in effect for your location; you can click the alert to read more details if applicable. If driving, slow down and leave plenty of distance ahead of you. Pedestrians and cyclists should wear bright or reflective clothing to increase the chances of being seen by others in poor visibility conditions.

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